func benchPreparedMockQuery(b *testing.B, c *conn, stmt driver.Stmt) {
rows, err := stmt.Query(nil)
if err != nil {
b.Fatal(err)
}
defer rows.Close()
var dest [1]driver.Value
for {
if err := rows.Next(dest[:]); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
}
}
func ctxDriverStmtQuery(ctx context.Context, si driver.Stmt, nvdargs []driver.NamedValue) (driver.Rows, error) {
if siCtx, is := si.(driver.StmtQueryContext); is {
return siCtx.QueryContext(ctx, nvdargs)
}
dargs, err := namedValueToValue(nvdargs)
if err != nil {
return nil, err
}
if ctx.Done() == context.Background().Done() {
return si.Query(dargs)
}
type R struct {
err error
panic interface{}
rowsi driver.Rows
}
rc := make(chan R, 1)
go func() {
r := R{}
defer func() {
if v := recover(); v != nil {
r.panic = v
}
rc <- r
}()
r.rowsi, r.err = si.Query(dargs)
}()
select {
case <-ctx.Done():
go func() {
<-rc
close(rc)
}()
return nil, ctx.Err()
case r := <-rc:
if r.panic != nil {
panic(r.panic)
}
return r.rowsi, r.err
}
}
func rowsiFromStatement(si driver.Stmt, args ...interface{}) (driver.Rows, error) {
// -1 means the driver doesn't know how to count the number of
// placeholders, so we won't sanity check input here and instead let the
// driver deal with errors.
if want := si.NumInput(); want != -1 && len(args) != want {
return nil, fmt.Errorf("sql: statement expects %d inputs; got %d", si.NumInput(), len(args))
}
dargs, err := driverArgs(si, args)
if err != nil {
return nil, err
}
rowsi, err := si.Query(dargs)
if err != nil {
return nil, err
}
return rowsi, nil
}
func ctxDriverStmtQuery(ctx context.Context, si driver.Stmt, nvdargs []driver.NamedValue) (driver.Rows, error) {
if siCtx, is := si.(driver.StmtQueryContext); is {
return siCtx.QueryContext(ctx, nvdargs)
}
dargs, err := namedValueToValue(nvdargs)
if err != nil {
return nil, err
}
rowsi, err := si.Query(dargs)
if err == nil {
select {
default:
case <-ctx.Done():
rowsi.Close()
return nil, ctx.Err()
}
}
return rowsi, err
}
